Thanks Ronw, the pictures at Amazon are fine. It looks nicely snug, and doesn't seem to add too much bulk. Together with shipping, it costs more than I expected, but then again, it is real leather. Hrm...

Darn - missed out on that offer!
Anyway, my case arrived today (the same as the one listed in this link) and I'm quite pleased by it. The thickness makes the entire thing about the size of a regular paperback book which is fine with me as I was worried that it'd be too thick.

Of course the case does make it weightier but I'll take that disadvantage in order to protect my Kobo.

The fit is perfect, with the only potential problem being that one of the straps fits directly over the power button at the top - I was worried that this would constantly turn the power on/off but it doesn't appear to have happened (yet).

The front right edge of the case wants to lift up a bit around the top and bottom edges but stays flat around the clasp area. I have a feeling that when the leather softens this will get better but I'm also considering weighting the edges down overnight to get it into proper conditioning.

Here's my homemade case. I made sure to put the soft side of the velcro on the back of the Kobo. I barely even notice it when I'm holding it out of the case. Mostly I just keep it in the book cover. The foam core on the left is ugly but necessary so the cover doesn't push on the D-pad when closed because until there is a better sleep mode that doesn't shut down I am not upgrading my firmware.